Mosquitoes, Gliders, and Dakotas in action

The video discusses military strategies involving attacks on supply lines, the role of airborne divisions, and troop transport methods. It highlights the concept of self-sufficiency in military logistics and concludes with a metaphorical reference to armies marching on silk.

What does 'self contained self supply' refer to in a military context?

What imagery is evoked by the phrase 'Armies marching on silk'?